WASHINGTON — The gunslinging Russian woman accused of cozying up to American officials to infiltrate the U.S. political system — at the behest of her Kremlin-linked mentor and with the help of her American boyfriend — allegedly tried to trade sex for influence.

The "Red Sparrow" scenario was unveiled Wednesday in a government memorandum that laid out the reasons why prosecutors believe Mariia Butina, 29, should remain jailed until trial.